[Catalyst] Re: TT2 multiple subtemplates

Thu Aug 11 11:51:03 GMT 2011

* Stefan <catalyst at s.profanter.me> [2011-08-10 21:05]:
> What is the best practice to load a template like the following:
>
> <html>
> <body>
> <div class"left">
>                 [% content %]
> </div>
> <div class"right">
>                 [% right_content %]
> </div>
> </body>
> </html>
>
> ,content' should be replaced with left_content.tt2
> ,right_content' with right_content.tt2
>
>
> If I use a Wrapper, only content is automatically replaced. How
> can I also replace right_content?

If you want to make `right_content` dependent on the page, i.e.
you want to define both a main content and some sidebar content
*per page*, then you can keep them both in the same template
using the following structure:

First off you need two infrastructure templates in your TT
configuration:

    PREPROCESS => [ 'includes.tt' ],
    WARPPER    => [ 'layout.tt' ],

Then in `includes.tt`:

    [% BLOCK sidebar ; END %]

(Yes, an empty block. It’s there to establish a fallback so you
can leave it out later.)

Then you use it in `layout.tt`:

    <html>
    <body>
    <div class"left">
        [% content %]
    </div>
    <div class"right">
        [% INCLUDE sidebar %]
    </div>
    </body>
    </html>

And now in your `somepage.tt` you can write:

    blah blah blah blah

    [% BLOCK sidebar %]hello world[% END %]

The `sidebar` block in this template will override the one
defined in `includes.tt`, and the resulting output will be:

    <html>
    <body>
    <div class"left">
        blah blah blah blah

    </div>
    <div class"right">
        hello world
    </div>
    </body>
    </html>

This way you can keep all the per-page content in one template
file, but you can break it down into smaller pieces of content
that the wrapper template can layout freely.

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